664450337 has 2 divisors, whose sum is σ = 664450338. Its totient is φ = 664450336.

The previous prime is 664450261. The next prime is 664450343. The reversal of 664450337 is 733054466.

664450337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663114001 + 1336336 = 25751^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 664450337 - 2¹⁴ = 664433953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664450337.

It is not a weakly prime, because it can be changed into another prime (664450937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332225168 + 332225169.

It is an arithmetic number, because the mean of its divisors is an integer number (332225169).

Almost surely, 2^664450337 is an apocalyptic number.

It is an amenable number.

664450337 is a deficient number, since it is larger than the sum of its proper divisors (1).

664450337 is an equidigital number, since it uses as much as digits as its factorization.

664450337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 38.

The square root of 664450337 is about 25776.9342048274. The cubic root of 664450337 is about 872.6113188180.

The spelling of 664450337 in words is "six hundred sixty-four million, four hundred fifty thousand, three hundred thirty-seven".